Kartik Aaryan replies to Farah Khan’s birthday wish on Instagram by asking workKartik Aaryan, who is known for his witty sense of humor, enjoyed a fun exchange with his Bollywood mates as they took to their online media handles to wish him on his birthday. Farah Khan shared a selfie with him and composed, ‘Happy birthday @kartikaaryan keep smiling…it drives people crazy.’ Replying to her, the actor []